Saw-jointer



(No Model.)

J. B. RANDALL.

SAW JOINTER. No. 420,547.

Patented Feb. 4, 1 890.

.QXM aooeo am'ua'ntoz Q 9% I Q 07 140 I 6 6 5 W f v UNITEDSTATAESQPATENT OFFICE;

JAMES EDWINlRANDALL, on DALLAS, TEXAS.

SAW-JOINTER.

STPE(IIIEIIKLA'LION forming part of Letters Patent No. 420,547, datedFebruary 4, 1890.

Application filed May 25, 18891 To all whom it may concern.-

Be it known that I, JAMES EDWIN RAN- DALL, of Dallas, in the county ofDallas and State of Texas, have invented certain new and usefulImprovements in Saw-Jointers; and I do hereby declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

My invention relates to an improvement in saw-jointers.

The object is to furnish a device for holding files 01' similarimplements for striking or evening saw-teeth; and it consists in acasing having an opening for the passage of a saw, guide-fianges forretaining the saw in proper position relative to the file, and a movableblock for holding the file in positionwithin the casing.

It further consist-s in certain novel features of construction andcombinations of parts, as will be hereinafter described, and pointed outinthe claims.

In the accompanying drawings, Figure 1 is a view in perspective of myimproved sawjointer, and Fig. 2 is a sectional view. A represents acasing, which is preferably made of metal, though it may be made ofwood, if desired. It has the parallel sides 1 1, and in the longitudinalcenter of its fiat bottom is provided with an opening 2, eX- tending theentire length of the bottom. This opening is made a little wider than anordinary saw-blade to allow for the set of the teeth, so that they maypass without striking and scratching. A pair of parallel or nearlyparallel flanges 3 3 extend outward from the bottom adjacent to theopening, and are adapted to receive a saw between them and guide it inits movement, keeping it perpendicular to the file. 1

Within the casing the movable block t is fitted and adapted to be movedup and down to receive and hold files of different size and shape. Thisblock is provided in its lower face opposite the opening 2 with aV-shaped groove 5, which is intended to receive one of the edges of anordinary triangular file, so

Serial No. 812,130. (No model.)

that one of the flat sides is held over the opening. A screw 6 extendsthrough the top of the casing into the block, and when turned raises orlowers the block to suit the size of the file.

The jointer is made especially applicable to the use of three-corneredfiles, because just the portion which is used in this device is thatwhich is never worn in sharpening the teeth of saws-namely, the portionmidway between the edges; but I by no means confine myself to the use ofthis particular form of file, as it will be seen from the constructionand size of the casing that ample space is intentionally made for thereception of any kind or shape of file such, for instance, as a fiatfile-the movable block always acting as a clamp to hold the file inplace.

Of course it is understood that to straighten the teeth of a saw thelatter is placed be tween the flanges and reciprocated with the teethagainst the file, or else the saw may be held and the holder or jointerreciprocated, the effect being the same-namely, to always strike theteeth at right angles to the blade.

It is evident that slight changes might be resorted to in the form andarrangement of the several parts described without departing from thespirit and scope of my invention, and hence I do not wish to limitmyself to the particular construction herein set forth; but,

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-= 1. In a saw-jointer, the combination,witha casing having an opening in the longitudinal .center of one of thesides, of amovable block fitted in the casing back of the opening, saidblock having a groove therein .opposite the opening, and an adjustingscrew extending through the easing into the block and adapted toregulate the position of the block, substantially as set forth.

2. The combination, with a casing having parallel sides and an openingformed in the longitudinal center of the casing and parallel flangesadjacent to the opening and at right angles to that portion of thecasing in which the opening is formed, of a movable block fitted withinthe parallel sides back of the opening, said block having a V-shapedgroove in the face nearest the opening in the casing and incorresponding positions thereto, and a screw extending through theeasing into the block, whereby the block is moved, substantially as setforth.

I11 testimony whereof I have signed this specification in the presenceofi two subscribing witnesses.

JAMES'EDWIN RANDALL.

Witnesses:

F. M. ADAMS, C. C. CLEMANS.

